1. CSIR-National Physical Laboratory, Dr. K. S. Krishnan Road, New Delhi 110012, India
2. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
3. Energy Materials and Devices Division, CSIR-Central Glass and Ceramic Research Institute, 196, Raja S. C. Mullick Road, Kolkata 700032, India
4. Applied Physics Department, Faculty of Engineering and Technology, M.J.P. Rohilkhand University, Bareilly 243006, India